Views from the west rim of the crater, looking generally east, at new Kīlauea eruption. Dome fountain is about 10 m (30 ft) high. Much of the east side of the crater has been covered with lava. Best webcam views are from .
#KilaueaErupts
@Volcanoes_NPS
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@Volcanoes_NPS
A new vent opened in the central-eastern part of the crater at 5:45 PM HST and can be seen in this photo.
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@USGSVolcanoes
@Volcanoes_NPS
How deep is the entire crater? I was wondering, since the dome fountain is roughly 30 ft high.
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@lori_s01
@Volcanoes_NPS
It depends on the measurement point. From where these photos were taken, It's about 200 m (650 ft) down to the lava.
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@USGSVolcanoes
@Volcanoes_NPS
May I ask what kind of rocks will form from this eruption? Do you know if the lava is pahoehoe or a’a? Does the Pahoehoe lava form obsidian rocks? Thanks!
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@in83508023
@Volcanoes_NPS
Pahoehoe and ʻaʻā aren't compositions, but textures -- smooth versus rough, basically. They have the same composition. Obsidian generally forms from high-silica and rapidly cooled flows. These flows will form a glass, but lower in silica -- a basaltic composition.
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@CreepPhone
@Volcanoes_NPS
Precisely. These lava lakes stay molten for a really long time. Something as thick as the lava that accumulated in the crater since 2020 would take decades (or more) to cool completely.
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